基金supported by Key Laboratory Open Fund of Ultra Precision Machining Technology of CAEP(KF13006)Research Fund for the Doctoral Program of Higher Education of China(20120191120022)
基金Supported by the National Natural Science Foundation of China(Grant No .60706032)the National Hi-Tech Research and Development Programof China(863 Program)(Grant No .2008AA04Z310)the Cultivation Fund of the Key Scientific and Technical Innovation Project,Ministry of Educationof China (Grant No .708072)